Pentair Inline Strainer Filter 1/4 In FNPT 522010Z DE filter cartridge a purpose‑built retrofit for pools

a purpose‑built retrofit for pools and spas

stainless steel screws

reducing downtime and keeping your system flowing smoothly

Hayward engineering you can trust: Designed to integrate smoothly with Hayward systems for consistent performance and serviceability

and straightforward installation across pumps

Pentair Inline Strainer Filter 1/4 In FNPT 522010Z DE filter cartridge a purpose‑built retrofit for poolsPentair Inline Strainer Filter 1 4 In FNPT 522010Z Designed for compact, in line filtration, the Pentair Inline Strainer Filter 1 4 In FNPT (522010Z) protects pumps and downstream components from sediment and debris. With standard 1 4" FNPT ports, it fits neatly into tight piping runs, making installation quick and straightforward. Its replaceable screen traps particles before they reach your system, while a durable, chemical resistant housing stands